scan for R versions by home path (not script); scan /opt/local/R
scan for R versions by home path (not script); scan /opt/local/R

vbelakov/rstudio,jrnold/rstudio,more1/rstudio,edrogers/rstudio,jzhu8803/rstudio,edrogers/rstudio,edrogers/rstudio,tbarrongh/rstudio,edrogers/rstudio,john-r-mcpherson/rstudio,brsimioni/rstudio,githubfun/rstudio,more1/rstudio,jar1karp/rstudio,suribes/rstudio,JanMarvin/rstudio,more1/rstudio,john-r-mcpherson/rstudio,thklaus/rstudio,pssguy/rstudio,more1/rstudio,jzhu8803/rstudio,jzhu8803/rstudio,piersharding/rstudio,john-r-mcpherson/rstudio,vbelakov/rstudio,tbarrongh/rstudio,pssguy/rstudio,more1/rstudio,JanMarvin/rstudio,tbarrongh/rstudio,piersharding/rstudio,suribes/rstudio,pssguy/rstudio,jar1karp/rstudio,jrnold/rstudio,JanMarvin/rstudio,tbarrongh/rstudio,jrnold/rstudio,vbelakov/rstudio,githubfun/rstudio,suribes/rstudio,more1/rstudio,john-r-mcpherson/rstudio,tbarrongh/rstudio,brsimioni/rstudio,suribes/rstudio,sfloresm/rstudio,githubfun/rstudio,suribes/rstudio,edrogers/rstudio,thklaus/rstudio,vbelakov/rstudio,vbelakov/rstudio,sfloresm/rstudio,pssguy/rstudio,john-r-mcpherson/rstudio,more1/rstudio,thklaus/rstudio,thklaus/rstudio,pssguy/rstudio,jzhu8803/rstudio,piersharding/rstudio,JanMarvin/rstudio,githubfun/rstudio,sfloresm/rstudio,JanMarvin/rstudio,brsimioni/rstudio,piersharding/rstudio,jar1karp/rstudio,jzhu8803/rstudio,pssguy/rstudio,edrogers/rstudio,brsimioni/rstudio,john-r-mcpherson/rstudio,suribes/rstudio,piersharding/rstudio,pssguy/rstudio,JanMarvin/rstudio,thklaus/rstudio,tbarrongh/rstudio,jar1karp/rstudio,brsimioni/rstudio,thklaus/rstudio,githubfun/rstudio,sfloresm/rstudio,githubfun/rstudio,piersharding/rstudio,jrnold/rstudio,brsimioni/rstudio,sfloresm/rstudio,jrnold/rstudio,piersharding/rstudio,tbarrongh/rstudio,jrnold/rstudio,jrnold/rstudio,john-r-mcpherson/rstudio,piersharding/rstudio,githubfun/rstudio,sfloresm/rstudio,JanMarvin/rstudio,sfloresm/rstudio,jzhu8803/rstudio,vbelakov/rstudio,vbelakov/rstudio,vbelakov/rstudio,edrogers/rstudio,john-r-mcpherson/rstudio,brsimioni/rstudio,jar1karp/rstudio,piersharding/rstudio,sfloresm/rstudio,thklaus/rstudio,brsimioni/rstudio,suribes/rstudio,suribes/rstudio,more1/rstudio,jzhu8803/rstudio,jar1karp/rstudio,jar1karp/rstudio,githubfun/rstudio,jzhu8803/rstudio,jar1karp/rstudio,tbarrongh/rstudio,jrnold/rstudio,JanMarvin/rstudio,jar1karp/rstudio,jrnold/rstudio,thklaus/rstudio,edrogers/rstudio,pssguy/rstudio,JanMarvin/rstudio